From Swedish, which has similar dialect words for calling a cat: e.g. kisse, kise, kissa, kiss.[1]. According to another theory, comes from the way of calling a cat by saying "kis-kis-kis" which is used throughout Europe, at least in Spain, Italy, Russia and Sweden, compare also Estonian kass, Veps kaži, Russian ко́шка(kóška) and киса(kisa), German Katze.